Consider the following statements about polar plots

1. Addition of a non-zero pole to a transfer function results in further rotation of polar plot through an angle of - 90° as ω → ∞
2. Addition of a pole at the origin to a transfer function rotates the polar plot at zero and infinite frequencies by a further angle of - 90°

Of the above statements:

The phase angle curve of G(jω) H(jω) is drawn by adding the phase angles of individual factors.

Assertion (A): Industrial robots improve productivity.

Reason (R): Robots can handle monotonous and complex jobs without error in operation.

The response to sinusoidal excitation can be found by

The pole zero plot in the given figure is for